Change platform Scene.getCurrentScene parameter from View to ViewGroup

API Review request to use ViewGroup here as Scene roots can only be ViewGroup

Bug: 120504681
Test: none
Change in AndroidX: aosp/841919
Change-Id: I6fb857bc68d2afca54fe7d366fe8490d03c947a9

1 files changed, 10 insertions, 10 deletions

diff --git a/core/java/android/transition/Scene.java b/core/java/android/transition/Scene.java
index b1fc17a4ecd1..8d4db54ab7b1 100644
--- a/core/java/android/transition/Scene.java
+++ b/core/java/android/transition/Scene.java
@@ -96,7 +96,7 @@ public final class Scene {
      * the hierarchy specified by the layoutId resource file.
      *
      * <p>This method is hidden because layoutId-based scenes should be
-     * created by the caching factory method {@link Scene#getCurrentScene(View)}.</p>
+     * created by the caching factory method {@link Scene#getCurrentScene(ViewGroup)}.</p>
      *
      * @param sceneRoot The root of the hierarchy in which scene changes
      * and transitions will take place.
@@ -194,28 +194,28 @@ public final class Scene {
     }
 
     /**
-     * Set the scene that the given view is in. The current scene is set only
-     * on the root view of a scene, not for every view in that hierarchy. This
+     * Set the scene that the given ViewGroup is in. The current scene is set only
+     * on the root ViewGroup of a scene, not for every view in that hierarchy. This
      * information is used by Scene to determine whether there is a previous
      * scene which should be exited before the new scene is entered.
      *
-     * @param sceneRoot The view on which the current scene is being set
+     * @param sceneRoot The ViewGroup on which the current scene is being set
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
-    static void setCurrentScene(@NonNull View sceneRoot, @Nullable Scene scene) {
+    static void setCurrentScene(@NonNull ViewGroup sceneRoot, @Nullable Scene scene) {
         sceneRoot.setTagInternal(com.android.internal.R.id.current_scene, scene);
     }
 
     /**
-     * Gets the current {@link Scene} set on the given view. A scene is set on a view
-     * only if that view is the scene root.
+     * Gets the current {@link Scene} set on the given ViewGroup. A scene is set on a ViewGroup
+     * only if that ViewGroup is the scene root.
      *
-     * @param sceneRoot The view on which the current scene will be returned
-     * @return The current Scene set on this view. A value of null indicates that
+     * @param sceneRoot The ViewGroup on which the current scene will be returned
+     * @return The current Scene set on this ViewGroup. A value of null indicates that
      * no Scene is currently set.
      */
     @Nullable
-    public static Scene getCurrentScene(@NonNull View sceneRoot) {
+    public static Scene getCurrentScene(@NonNull ViewGroup sceneRoot) {
         return (Scene) sceneRoot.getTag(com.android.internal.R.id.current_scene);
     }